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10.4 In any state, when the power board cannot receive valid
communication data from the display board for 20 seconds, the
power board automatically turns off all loads, and the display
board displays “E-5”. When the display board cannot receive
valid communication data from the power board for 20 seconds,
the display board sends data to close all loads except cooling
motor, and the display board displays “E-6”.
10.5 Fault code description
10.2 When the temperature <35C after 5 minutes of heating
(except for defrost mode, bottom heating element and Eco
mode), it means the heating element have a problem, display
will show E-2, buzzer will continuously prompt for 10 times
(1s/time), refer to display effect shown as pic13. At this time
long press switch knob or touch K2 “ ” key can return to
standby mode.
10.3 During self-cleaning process,if display screen shows fault
code “E-3” when door is locked into place, it means door lock or
detection circuit is faulty. When the fault code appears, the
buzzer will continuously prompt for 10 times (1s/time), display
effect as below pic 14). At this time long press KB or K2 “ ” key
can return to standby mode.
Pic 13: Heating element abnormalalarm display effect
Pic 12: Sensor abnormal alarm display effect
Pic14:Door lock abnormal alarm display effect
Open or shorted sensor
Sensor or detection circuit
failure
Sensor or heating element
failure
Door lock or detection
circuit failure
Communication line failure
Communication line failure
Defective sensor or heating
element drive circuit
MCU failure
Long time under lower temperature
Door lock failure
MCU Register failure
The power board cannot receive the
effective communication data from the
display board for 20 seconds, and the
power board automatically turns off all
loads.
The display board cannot receive valid
communication data from the power
board for 20 seconds, and the display
board sends data to turn off the load.
High temperature protection occurs, and
the load is turned off within 10 seconds.
Error
code
Description
Reason
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